| 张海阔,张宝刚,周钟昱,梁佳辉,吴家森,吕玉龙,解宏图,蔡延江.亚热带天然林转变为毛竹林和茶园对土壤胞外酶活性的影响[J].农业环境科学学报,2022,41(4):826-833. |
| 亚热带天然林转变为毛竹林和茶园对土壤胞外酶活性的影响 |
| Effects of converting natural forests to Moso bamboo and tea plantations on soil extracellular enzyme activity in subtropical China |
| 投稿时间：2021-08-18 |
| DOI：10.11654/jaes.2021-0932 |
| 中文关键词: 土壤胞外酶活性 关键驱动因子 天然林 毛竹林 茶园 土地利用变化 |
| 英文关键词: soil extracellular enzyme activity key driving factor natural forest Moso bamboo plantation tea plantation land-use change |
| 基金项目:国家自然科学基金项目（41877088，41950410570）；浙江农林大学科研发展基金项目（2018FR005，2018FR006） |
| 作者 | 单位 | E-mail | | 张海阔 | 浙江农林大学省部共建亚热带森林培育国家重点实验室, 杭州 311300
浙江农林大学环境与资源学院, 杭州 311300 | | | 张宝刚 | 浙江农林大学省部共建亚热带森林培育国家重点实验室, 杭州 311300
浙江农林大学环境与资源学院, 杭州 311300 | | | 周钟昱 | 浙江农林大学省部共建亚热带森林培育国家重点实验室, 杭州 311300
浙江农林大学林业与生物技术学院, 杭州 311300 | | | 梁佳辉 | 浙江农林大学省部共建亚热带森林培育国家重点实验室, 杭州 311300
浙江农林大学环境与资源学院, 杭州 311300 | | | 吴家森 | 浙江农林大学省部共建亚热带森林培育国家重点实验室, 杭州 311300
浙江农林大学环境与资源学院, 杭州 311300 | | | 吕玉龙 | 安吉县自然资源和规划局, 浙江 安吉 313300 | | | 解宏图 | 中国科学院沈阳应用生态研究所, 沈阳 110016 | | | 蔡延江 | 浙江农林大学省部共建亚热带森林培育国家重点实验室, 杭州 311300
浙江农林大学环境与资源学院, 杭州 311300 | yjcai@zafu.edu.cn |
|
| 摘要点击次数: 1093 |
| 全文下载次数: 825 |
| 中文摘要: |
| 为揭示我国亚热带地区天然林转变为毛竹林和茶园后土壤胞外酶活性（Extracellular enzyme activities，EEAs）的变异特征及关键驱动因子，以浙江省安吉县的天然林土壤及天然林转变的粗放经营毛竹林和集约经营茶园土壤为研究对象，测定了土壤EEAs及若干环境因子参数，通过冗余分析等分析方法筛选出了影响土壤EEAs的关键驱动因子。结果表明：与天然林相比，粗放经营毛竹林和集约经营茶园土壤酸性磷酸酶（Acid phosphatase，ACP）活性均显著降低，酚氧化酶（Phenol oxidase，POX）活性均显著升高；粗放经营毛竹林土壤亮氨酸氨基肽酶（Leucine aminopeptidase，LAP）活性显著升高；集约经营茶园土壤β-葡萄糖苷酶（β-1，4-glucosidase，BG）、纤维二糖水解酶（Cellobiohydrolase，CBH）、N-乙酰-β-D氨基葡萄糖苷酶（β-1，4-N-acetyl-glucosaminnidase，NAG）活性均显著降低。由以上结果可推知，与天然林相比，茶园土壤氮、磷养分相对充足，毛竹林土壤的磷限制有所缓解，茶园和毛竹林土壤中微生物以惰性碳作为主要的能量来源。此外，冗余分析表明，土壤pH在环境因子中的贡献率最高，是土壤总体EEAs变化的关键驱动因子。综上所述，相比天然林，转变后的粗放经营毛竹林和集约经营茶园土壤EEAs发生了明显变化，土壤pH作为关键驱动因子解释了亚热带地区天然林转变为毛竹林和茶园后土壤总体EEAs的改变。 |
| 英文摘要: |
| Converting natural forests into Moso bamboo and tea plantations may significantly alter the soil extracellular enzyme activities （EEAs）in subtropical regions. This study assessed soil EEAs and environmental factors in natural forests, as well as the areas that were converted into extensively managed Moso bamboo and tea plantations in Anji County, Zhejiang Province, China. To elucidate changes in the characteristics and mechanisms of EEAs after changes in land-use, and key factors that control the behavior of soil EEAs, redundancy analysis（RDA）and Spearman rank correlation analysis were performed. The results showed that the activity of soil acid phosphatase （ACP）decreased significantly, and soil phenol oxidase（POX）activity increased significantly in Moso bamboo and tea plantations, when compared to their activity in natural forests. Additionally, converting natural forests into Moso bamboo plantations significantly increased the activity of soil leucine aminopeptidase（LAP）, while their conversion into tea plantations significantly decreased the activity of soil β-1, 4,-glucosidase（BG）, cellobiohydrolase（CBH）, and β-1,4-N-acetyl-glucosaminidase（NAG）. The available nitrogen and phosphorus in the soil were more abundant in tea plantations, while soil phosphorus limitation was alleviated in Moso bamboo plantations; the primary energy source for soil microorganisms in both tea and Moso bamboo plantations was recalcitrant carbon. In addition, RDA showed that the soil pH was the main governing factor for variations in the soil ′ s total EEAs. Therefore, converting natural forests into plantations of Moso bamboo and tea significantly changes the total soil EEAs, and soil pH is the main factor governing the variation in total EEAs of the soil. |
| HTML
查看全文
查看/发表评论 下载PDF阅读器 |
|
|
|
